CNP Ignition with non LS (SBC/BBC) firing order?

[Ratssled]

Is there a PCM/OS combination that is capable of running Coil Near Plug ignition like an LS1, but uses an SBC/BBC firing order 1-8-4-3-6-5-7-2?
I know about the L21 BBC (i have one) but I'm unable to read the PCM let alone tune it. I'd really like to use an 0411 PCM with the 12212156 OS with the Gen-1 firing order (Logical and Physical) if possible.

[Fast4.7]

Is there a PCM/OS combination that is capable of running Coil Near Plug ignition like an LS1, but uses an SBC/BBC firing order 1-8-4-3-6-5-7-2?
I know about the L21 BBC (i have one) but I'm unable to read the PCM let alone tune it. I'd really like to use an 0411 PCM with the 12212156 OS with the Gen-1 firing order (Logical and Physical) if possible.

The firing order gets changed by re-pinning the coils and injectors, then changing the bank assignment and diagnostic firing order.

My 8.1L in my G20 van has a 502 HO cam in it with the old firing order.